Technical information
Page 30
Macro-Tech 24x6 & 36x12 Power Amplifiers
8 Accessories
8.1
P.I.P.
Modules
One advantage of
Macro-Tech
amplifiers is the ability
to customize them using
P.I.P.
(Programmable Input
Processor) and
PIP2
modules.
Macro-Tech
amplifiers
are equipped with an edge card connector inside the
back panel
P.I.P.
compartment. The modules install
easily:
FTE
Programmable
Input Processor (P.I.P.)
CH-2 INPUT CH-1 INPUT
+– +–
P.I.P.–FTE uses balanced 1:1 transformers to isolate the
amplifier from the input signal. It also includes 12 dB/octave
RFI filters, 18 dB/octave high pass filters, and 6 dB/octave 3
kHz shelving networks for “constant-directivity” horn equal-
ization. Screw terminal plugs are provided for input.
DSPI
AUX
CH-2 CH-1AUDIO IN
3
21
GND
GND
3
2
1
1
2
IN OUT
CROWN
BUS
GND
OUT
IN
3
2
1
MEM#.###
P. I . P.
-
MEM
PUSH PUSH
IQ–P.I.P.–MEM is
PIP2
-compatible and integrates the ampli-
fier into Crown’s patented
IQ System
.
®
The
IQ System
pro-
vides computer control of 1 to 2000 amplifiers. For example,
each amplifier channel can be monitored and controlled from
a personal computer attached to an
IQ System
. A memory
backup feature enables the IQ–P.I.P.–MEM to remember all
configuration settings when the power is turned off.
P. I. P.
-
SMT
DSPI
AUX
CH-2 CH-1AUDIO IN
3
21
GND
GND
3
2
1
1
2
IN OUT
CROWN
BUS
GND
OUT
IN
3
2
1
PUSH PUSH
SMT#.###
IQ–P.I.P.–SMT is also
PIP2
-compatible and includes all the
features of the IQ–P.I.P.–MEM plus
SmartAmp
™
capability.
Once the unit has been configured by an
IQ System
, its
SmartAmp
capabilities enable it to function autonomously.
We call this
distributed intelligence
.
™
The
SmartAmp
features
include a smooth output limiter for transparent loudspeaker
protection, power supply gates for energy savings,
ODEP
conservation to protect output devices with precision input
signal control, interrupt-driven reporting that lets you define
error conditions, and configurable short circuit detection.
P. I. P.
-
DSP
PUSH
PUSH
DSPI
CH-2 CH-1
EXT. POWER INPUT
24 VDC / 400 mA
TIP=
RING=
IN OUT
CROWN
BUS
AUDIO OUT
3
21
GND
CH-2 CH-1AUDIO IN
DSP#.###
IQ–P.I.P.–DSP is
PIP2
-compatible and provides digital sig-
nal processing capabilities to your amplifier, replacing the
need for outboard signal processing equipment such as
equalizers, crossover networks, signal delays and compres-
sors. In addition, the IQ–P.I.P.–DSP includes all the
SmartAmp
features of the IQ–P.I.P.–SMT to give you access to standard
IQ System
amplifier functions and autonomous operation.
WARNING: Disconnect power to the amplifier when
installing or removing a
P.I.P.
module.
P.I.P.s
carrying the
PIP2
logo are configured to use one
or more of the
PIP2
enhanced features. These features
are only available in a
PIP2
-compatible amplifier. Of
course, the exact features used will depend upon the
function of the
PIP2
module. Here are some of the avail-
able
P.I.P.
and
PIP2
modules:
AMC
Programmable
Input Processor (P.I.P.)
OUTPUT INPUT
3
12
GND
PUSH
P.I.P.–AMCb unites many features of the P.I.P.-XOV and P.I.P.–
CLP. It offers a variable 4th-order Linkwitz-Riley crossover
and an
IOC
-driven, variable threshold compressor. In addi-
tion, it provides “constant-directivity” horn equalization and
filter-assisted B6 vented box equalization. Biamping and
triamping capabilities are provided via XLR connectors.
Programmable
Input Processor (P.I.P.)
INPUT
3
12
GND
PUSH
CH-2 CH-1
PUSH
INPUT
EDC
b
P.I.P.–EDCb combines a sophisticated error-driven compres-
sor and smooth limiter with a maximum level setting and a
subsonic filter for each channel. The compressors have ad-
justable attack and release times, and can be set to track
each other. The compressors activate when a signal would
otherwise clip the input, an
IOC
error occurs, or the output
exceeds the selected threshold. The subsonic filters have
corner frequencies of 24, 28, 32 and 36 Hz.
P.I.P.
MODULE
BACK PANEL
OF AMPLIFIER
Fig. 8.1 Installing a P.I.P. Module